机场道面混凝土性能提升研究

材料导报

2022, Vol. 36

Issue (Z1): 22040083-4

无机非金属及其复合材料

机场道面混凝土性能提升研究

王鹏

中铁建设集团有限公司,北京 100040

Research on Performance Improvement of Airport Pavement Concrete

WANG Peng

China Railway Construction Group Co., Ltd., Beijing 100040, China

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摘要针对机场道面易受除冰剂污染从而使得路面使用寿命缩短的问题,本工作从提高混凝土的抗渗性与力学性能的角度出发,选用聚丙烯纤维、再生橡胶颗粒、矿渣硫铝酸盐水泥等材料,分别以单掺与混掺的方式通过抗压强度实验、抗折强度实验与抗氯离子渗透实验探究各材料对机场道面混凝土抗渗性与力学性能的影响。实验结果表明,纤维仅能提升普通水泥混凝土的力学性能,不宜与低热矿渣硫铝酸盐水泥共用,且对混凝土抗渗性没有显著影响。再生橡胶颗粒对普通水泥机场道面混凝土的力学性能影响很小,但显著降低矿渣硫铝酸盐水泥混凝土的早期强度,使得在浇筑48 h后混凝土都无法拆模,但对混凝土28 d力学性能没有显著影响。矿渣硫铝酸盐水泥能显著提高混凝土28 d力学强度、抗氯离子渗透性能。在不考虑早期抗压强度下,使用矿渣硫铝酸盐水泥可显著提升机场道面混凝土的力学性能和耐久性。

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关键词: 矿渣硫铝酸盐水泥聚丙烯纤维再生橡胶颗粒力学性能抗渗性机场道面混凝土

Abstract: In order to reduce the effect of deicing agent on the service life of airport pavements, polypropylene fiber, recycled rubber granules and slag sulfoaluminate cement were applied separately or together to improve the mechanical properties and impermeability of the cement concrete. The compressive strength test, flexural strength test and chloride ion resistance test were conducted to investigate the effects of materials on the impermeability and mechanical properties of airport pavement concrete. The experimental results show that fiber can only improve the mechanical properties of ordinary cement concrete;however, it is not suitable to be used with slag sulfoaluminate cement concrete and also has no significant effect on the impermeability. Rubber granules have little effect on the mechanical properties of ordinary cement airport pavement concrete but significantly reduce the early strength of slag sulfoaluminate cement concrete. The formwork cannot be removed for 48 h after pouring the concrete, but rubber granules have no significant effect on the 28 d concrete mechanical properties. Slag sulfoaluminate cement can significantly improve the 28 d concrete mechanical strength and impermeability. Without considering the early compressive strength, the use of slag sulfoaluminate cement can significantly improve the mechanical properties and durability of airport pavement concrete.

Key words: slag sulfoaluminate cement polypropylene fiber recycled rubber granules mechanical property impermeability airport pavement concrete

出版日期: 2022-06-05 发布日期: 2022-06-08

ZTFLH:

TU528.57

通讯作者: 410666730@qq.com

作者简介: 王鹏,2011年7月于长春建筑学院获得土木工程工学学士学位,现为中铁建设集团有限公司项目总工程师,目前主要进行道路工程材料研究和施工技术研究。获得专利5项。

引用本文:

王鹏. 机场道面混凝土性能提升研究[J]. 材料导报, 2022, 36(Z1): 22040083-4.
WANG Peng. Research on Performance Improvement of Airport Pavement Concrete. Materials Reports, 2022, 36(Z1): 22040083-4.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2022/V36/IZ1/22040083

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